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Solar flares from active region 2840
C19
M13
X0
LargestM5.61980-12-15
Span10 days
Flares by day
2
5
2
6
3
8
2
2
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1980-12-11 | 19:15 | 19:23 | 21 | M1.0 | N05E81 | 2840 |
| 1980-12-11 | 23:04 | 23:13 | 20 | M1.9 | N06E79 | 2840 |
| 1980-12-12 | 00:17 | 00:21 | 50 | M4.4 | N05E81 | 2840 |
| 1980-12-12 | 03:48 | 03:53 | 21 | C6.5 | N05E79 | 2840 |
| 1980-12-12 | 05:00 | 05:02 | 26 | M4.9 | N06E78 | 2840 |
| 1980-12-12 | 08:33 | 08:40 | 12 | C6.8 | N04E72 | 2840 |
| 1980-12-12 | 15:40 | 15:43 | 20 | M1.0 | N03E70 | 2840 |
| 1980-12-13 | 09:19 | 09:22 | 10 | C9.4 | N07E61 | 2840 |
| 1980-12-13 | 23:39 | 23:45 | 22 | C4.8 | N04E52 | 2840 |
| 1980-12-14 | 02:21 | 02:25 | 17 | C3.2 | N09E50 | 2840 |
| 1980-12-14 | 09:44 | 09:49 | 32 | C6.0 | N06E46 | 2840 |
| 1980-12-14 | 13:11 | 13:15 | 15 | C4.5 | N05E42 | 2840 |
| 1980-12-14 | 17:35 | 17:52 | 53 | M1.5 | N05E41 | 2840 |
| 1980-12-14 | 19:32 | 19:34 | 12 | C3.1 | N06E37 | 2840 |
| 1980-12-14 | 22:03 | 22:38 | 68 | C9.0 | N10E37 | 2840 |
| 1980-12-15 | 03:11 | 03:51 | 45 | C3.3 | – | 2840 |
| 1980-12-15 | 08:31 | 08:42 | 42 | M1.9 | – | 2840 |
| 1980-12-15 | 19:20 | 19:27 | 32 | M5.6 | N11E28 | 2840 |
| 1980-12-16 | 00:59 | 01:02 | 29 | C5.8 | N05E25 | 2840 |
| 1980-12-16 | 01:45 | 01:47 | 9 | M1.1 | N08E23 | 2840 |
| 1980-12-16 | 04:32 | 04:35 | 8 | C4.4 | N08E22 | 2840 |
| 1980-12-16 | 08:05 | 08:09 | 8 | M2.0 | N09E18 | 2840 |
| 1980-12-16 | 09:09 | 09:12 | 12 | C5.7 | N06E23 | 2840 |
| 1980-12-16 | 09:42 | 10:12 | 41 | M4.2 | N06E24 | 2840 |
| 1980-12-16 | 14:27 | 14:54 | 49 | M4.7 | N09E14 | 2840 |
| 1980-12-16 | 20:24 | 20:24 | 12 | C6.8 | N08E09 | 2840 |
| 1980-12-17 | 04:21 | 04:24 | 5 | C6.9 | – | 2840 |
| 1980-12-17 | 08:44 | 08:47 | 11 | C7.6 | N10E07 | 2840 |
| 1980-12-18 | 01:40 | 01:44 | 35 | M2.0 | N07W00 | 2840 |
| 1980-12-18 | 19:08 | 19:22 | 31 | C5.7 | N07W11 | 2840 |
| 1980-12-19 | 20:12 | 20:14 | 45 | C5.0 | N05W25 | 2840 |
| 1980-12-20 | 07:29 | 07:29 | 14 | C2.7 | N03W37 | 2840 |
All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.
About this page
NOAA active region 2840 produced 32 C+ flares between 1980-12-11 and 1980-12-20.